查看linux系统版本及内核

一、查看Linux系统版本的命令（3种方法）

1、适用于所有的Linux发行版

cat /etc/issue

　　[root@S-CentOS home]# cat /etc/issue

　　CentOS release 6.5 (Final)
　　Kernel \r on an \m

2、只适合Redhat系的Linux：

cat /etc/redhat-release

　　[root@S-CentOS home]# cat /etc/redhat-release

　　CentOS release 6.5 (Final)

3、列出所有版本信息：

lsb_release -a

　　[root@S-CentOS ~]# lsb_release -a

　　LSB Version: :base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
　　Distributor ID: CentOS
　　Description: CentOS release 6.5 (Final)
　　Release: 6.5
　　Codename: Final

　　 lsb_release命令安装：

yum -y install redhat-lsb

二、查看Linux内核版本：

1、cat /proc/version

　　[root@S-CentOS home]# cat /proc/version
　　Linux version 2.6.32-431.el6.x86_64 ([e-mail]) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-4) (GCC) ) #1 SMP Fri Nov 22 03:15:09 UTC 2017

2、uname -a

　　[root@S-CentOS home]# uname -a

　　Linux S-CentOS 2.6.32-431.el6.x86_64 #1 SMP Fri Nov 22 03:15:09 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux